#include<stdio.h>
#include<math.h>

int main(void){
  /*  int i,j,k;
    i = 10;
    j = sqrt(i);
    k = (int ) sqrt(i);
    printf("%d\t%d\t%d",i,j,k);
    */

    int i,j,k;
    i = -42;
    j = i % 26;
    printf("%d",j);
    return 0;
}
